Nozzle for spraying liquids with adjustable scattering effect



Sept. 2 '1.

J. H. MORISSEAU NOZZLE FOR SPRAYING LIQUIDS WITH ADJUSTABLE SCATTERING EFFECT Filed Nov. 27, 1922 lli/l5 Patented Sept. 2, 1924. F

UNITED STATES JACQUES HENRI MQBISSEAU, 0F FALRIIS, FRANCE.

NQZZLE FOR SPRAYING LIQUIDS WITH ADJUSTABLE SCATTERING EFFECT.

Application filed November 27, 1922. Serial No. 603,685.

To all whom it may concern:

Be it known that I, JACQUES HENRI Momssaw, 9 Rue de, la Roquette, Paris, France, have invented Nozzles for Spraying Liquids with Adjustable Scattering Eifect, of which the following is a full, clear, and exact description.

This invention relates to improvement-s in nozzles of the type which permits varying the volume and the shape of the stream of liquid issuing therefrom.

This invention has for its object to provide a new nozzle allowing the obtaining of a conical spray or jet of finely divided liquid, the angle of which may be varied at will the liquid having to undergo only a small loss of velocity.

The invention is characterized by the combination with the nozzle of a ground cock the plug of which is inclined with reference to the axis of this nozzle. This plug is fixed while the shell 01' box carrying the nozzle is movable.

When the ports of the plug and of the shell do not correspond, the liquid jet ejected from the plug impinges the internal surface of the nozzle at an angle and has thus imparted thereto an helical or screw motion the pitch of which becomes smaller as the discharge area of the nozzle decreases. This device allows the obtaining of a conical open spray whose angle of divergence can be varied between 0 and 90 by simply turning the plug with reference to the shell or box.

The accompanying drawing shows by way of example two ways of carrying out the invention as applied to watering or fire sprayers.

Figure 1 is a longitudinal section of the apparatus.

Figure 2 is a longitudinal section of the apparatus in another position.

Figure 3 is a section through A-A of Figure 1.

Figure 4 is a section through B-B of Figure 2.

Figure 5 is a longitudinal section of a modified form.

As shown in this drawing, the apparatus comprises a conical tube at having at one end an internally threaded socket b which allows it to be secured as an ordinary sprayer, upon a joint placed at the end of a water-hose.

At the other end, the tube a is provided with a conical bearing 0 in the side wall of which the end of the bore of the tube a terminates in an opening cl. This axis of the;-

the tube.

On thlsbearlng 0 can turn a shell or box of a corresponding shape, a, maintained in ,bearing is inclined relatively to the axis ofposition by a Washer f and a nut g screwed 1' upon a threaded stem which terminates the bearing 0. In the mass of this shell 6 is formed a conical nozzle h the axis of which is inclined with reference to that of the shells These different parts are combined so that:

the bore of the-nozzle; h can be brought exactly into alinement with the bore of the tube a as shown in Figs. 1 and 3. In this position, the apparatus works as in an ordinary sprayer nozzle.

the liquid have not, as in the usual Sprayers,

a direction which is parallel with the axis of the jet but move at an inclination relatively to this axis. The whole forms a wide conical jet or spray of finely divided liquid.

If the nozzle is turned to a greater angle, the liquid will strike it more obliquely, the course followed by the liquid is that of a screw with smaller pitch, and the speed of the different particles is moreinclined towards the axis. The liquid then issues from the nozzle in the form of an open conelike spray. On the contrary, when the, nozzle is turned to a smaller angle, the angle at the apex of the cone decreases. The only noticeable loss of head which the liquid undergoes in the apparatus is that which is due to the reduced section of passage between the conical tube and thenozzle; anyhow, the same is very small and much smaller than the one prevailing in the de vices which have been heretofore used.

Finally, the jet or spray can be entirely with shell, themovable plug 70 of which is inclined relatively to the axis of the nozzle z'. The 'operation is the same as in the previous apparatus.

As it will be understood from the preceding specification, theapparatus forming the subject-matter of the present invention, can produce either-a full cylindrical jetor spray, a pulverized conical jet forming an angle at the apex included b'etWeen 0 and90,-or can entirely stop the outflow of liquid. In this apparatus, the breaking up or atomization is obtained without any important loss of head.

It is evident that the principle of the invention is applicable to devices 'otherthan firehose nozzles, and it may, foraexample, be applied to garden and other types of sprinkler nozzles.

The above described arrangements have been given as examples only. The forms, sizes and materials usedcan o l-course vary without departing from the principle of the invention.

Claims 1. In a nozzle, a member havlng a tapermg bore, a valve mounted in said member and rotatable about an axis, disposed obliquely to said bore and having an open+ ing therein adapted to register with and correspondingly tapered to said bore.

2. In a nozzle, two members, one adapted to rotate within the other, one of said members having a longitudinally tapered bore therein and the other member having a axis of the valve, said'va'lve having an opening therein adapted to register and corresponding in taper to the tapered bore.

The foregoing specification of my Nozz le for spraying liquids with adjustable scattering effect signed by me this letlrday of November, 1922.

JACQUES HENRI MORISSEAU, 

